function SMR = psycho(frameT, frameType, frameTprev1, frameTprev2)
%Implementation of Psychoacoustic Model
%   Usage SMR = psycho(frameT, frameType, frameTprev1, frameTprev2), where:
%       Inputs
%       - frameT is a frame in the time domain, containing only one of the
%       audio channels stored in a vector of length 2048
%       - frameType is the type of the current frame in string
%       representation, can be one of "OLS" (ONLY_LONG_SEQUENCE), "LSS"
%       (LONG_START_SEQUENCE), "ESH" (EIGHT_SHORT_SEQUENCE), "LPS"
%       (LONG_STOP_SEQUENCE)
%       - frameTprev1 is the previous frame in the time domain, containing
%       only one of the audio channels stored in a vector of length 2048
%       - frameTprev2 is the frame before frameTprev1 in the time domain,
%       containing only one of the audio channels stored in a vector of
%       length 2048
%
%       Output
%        - SMR is the signal to mask ratio array of dimensions 42X8 for
%       EIGHT_SHORT_SEQUENCE frames and 69X1 otherwise

    
end